Vehicle speed control method and device, vehicle electronic control equipment

Abstract

The invention discloses a vehicle speed control method and device, and vehicle electric control equipment. Wherein, the method includes: when receiving the deceleration command, detecting the current vehicle speed value of the target vehicle; determining the vehicle speed prediction model and the target deceleration parameters, wherein the vehicle speed prediction model is used to predict the vehicle speed control parameters of the target vehicle in the future preset time period , the target deceleration parameters at least include: deceleration time length, deceleration control time domain, deceleration prediction time domain and deceleration difference; determine the deceleration reference amount of the target vehicle during deceleration, wherein the deceleration reference amount is used to indicate that the target vehicle is calculated according to the deceleration time length The deceleration distribution value when the vehicle decelerates; based on the target deceleration parameter, the vehicle speed control parameter and the deceleration reference value, the target vehicle is controlled to decelerate from the current vehicle speed value to the vehicle speed set value. The invention solves the technical problem that when the vehicle is in emergency braking, the sudden increase in vehicle speed will be caused by the fixed deceleration until the deceleration is performed, reducing the emergency braking effect.

Description

technical field [0001] The invention relates to the technical field of vehicle speed control, in particular to a vehicle speed control method and device, and vehicle electronic control equipment. Background technique [0002] In the related technology, the automatic emergency braking system of the vehicle can decelerate during the warning stage, but the regulations require that the deceleration should not exceed 15km / h. Most of the current deceleration strategies are to decelerate with a fixed deceleration value when the warning is triggered. If the deceleration exceeds 15km / h The brakes are fully released at hour h. If the emergency braking trigger threshold has not been reached at this time, a control "vacuum zone" will appear in the transitional working conditions of these two stages. In some cases, the vehicle speed will increase suddenly, reducing the emergency braking stage. braking effect. [0003] For the above problems, no effective solution has been proposed yet. ...

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a vehicle speed control method and device, and vehicle electronic control equipment, so as to at least solve the technical problem that the vehicle speed will suddenly increase and the emergency braking effect will be reduced when the vehicle is decelerated from a fixed deceleration to deceleration during emergency braking.

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